To attain access control using natural language analysis processing.
An information processing system 100 includes: a document storage part 50 for storing document data; an analyzing part 52 for imparting an attribute with respect to a semantic unit included in the text of the document data; attribute index storage parts (66, 68) for storing the semantic unit of the document data and the attribute imparted to the semantic unit in association with each other; authority definition storage part 76 for storing authority definition data to define the access authority of an access entity with respect to information including the semantic unit associated with the attribute; an access control part 72 for determining the propriety of access of the access entity according to the attribute associated with the semantic unit concerning the information including the semantic unit of the document data by referring to the authority definition data; and an input/output part 74 for outputting an inquiry result following the determination of the access control part in response to the input of the access inquiry to the document data.
COPYRIGHT: (C)2010,JPO&INPIT
Takuma Murakami
| JP2005018220A | ||||
| JP10334097A | ||||
| JP2003228507A |
Tasaichi Tanae
Yoshihiro City
Hiroshi Sakaguchi